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User Name Stay logged in? I'm looking for some replacement transistors for Sanken 2S C and 2S A, can't seem to find them anywhere. If the Toshibas would work, they seem to be the better deal. I'd rather believe that I do know what I'm talking about, but am always willing to be told I don't.
I suggest you to use google or similar and find the transistor that you have, usually you reach a site with complementary components useful to replace your sanken. I did that and found transistor complementary for my PPI amp.
I tried searching individually before with no results. So after your suggestion, I searched for both at the same time and I found some! Although, I'm not even sure these are the correct transistors for the amp now because as I posted in the Solid State forum, I found that each transistor looks like it was aftermarket modified.
Unless someone had to replace all the transistors, I'm guessing they put these in because they thought they'd be better. Hi, try comparing specs for these;- 2sa, 2sa, 2sa onlyV , 2sa, 2sa and their complements.
Why do you need to replace the originals? Do you want to consider selecting something that can take a bit more abuse or add extra devices in parallel? Yeah, I was wondering why a pro amp would be using Sankens, plus there were only 5 pairs per channel, which is supposed to put out w into 4 ohms These transistors are about 5 times slower than the Sankens you have taken out but can cope with about twice the power I would expect the gain to be a bit lower which will load the drivers.
Yeah, the output sounds about right, it has v filter caps. I'll go ahead with the MJLs, but now I have some other parts needing replacement It looks like these may have been put in along with the Sankens, are they appropriate for this amount of power?
There are one each that were heatsinked and 2 s and 1 not heatsinked. One of the s heatsinked was bad in channel damaged worst. Can't find anything about it anywhere. If anyone would like to buy the Sankens I have, I don't need them. The pairs were the ones there were matched in the circuit, whether they actually do "match" I have no idea. All same transistors have the same code "8N P" for the , "80 P" for the I was able to contact Samson and get a schematic for the amp.
It turns out that the Sankens ARE original parts. What would need to be done to use the MJL parts instead of the Sankens? I'm assuming I wouldn't need 5 of each transistor per channel like with the Sankens. Or if I did decide to fill all the spots, would I need to change any other parts to accomodate? Hi, now that you have confirmed that the Sankens are the original fitment then it appears you are proposing to fit a non equivalent substitute.
As I see it you are losing both speed and gain in return for power. I would expect this to have some effect on performance. I do not know if this would be audible but the concensus on this forum is generally that fitting faster outputs can improve the sound provided the amp is refettled to remain stable.
You are going in the opposite direction. I would expect the stabilty components will need to be reselected to optimise the circuit. Any protection circuit will be completely wrong for the new outputs. Even farther astray if you change the number of output pairs. BB code is On. Smilies are On. Forum Rules. All times are GMT. The time now is AM. Resources saved on this page: MySQL User Name. Stay logged in? Mark Forums Read. Parts Where to get, and how to make the best bits.
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